Double-cut tool.



E. S. CLARKE, DECD.

vlRalNlA TRUST COMPANY. ExEcuToR DOUBLE CUT TOOL.

APPLlcATmN HLED1uNE3.1914.

Patented Apr.. 13, 19115.

5min Mimm.

DWARD S. CLARKE, OF RICHMOND, VIRGINIA; VIRGINIA TRUST'COMPANY, EXECU'IOR OF SAID CLARKE, DECEASED, ASSIGNOR 0F ONE-HALF T0 ISAAC .1'. MARCUSE, OF

RICHMOND, VIRGINIA.

DOUBLE-CUT yTOOL.

instaat.

Specification of Letters Patent.

Patented Apr. 13, 1915..

Application led une 3, 1914. Serial No. 842,564..

T0 all whom it may concern:

Be it known that I, EDWARD S. CLARKE, a citizen of the United States, residing in Richmond, in the county of Henrico and State of Virginia, have invented a new and useful Improvement in Double-Out Tools, of which the following is a specification.

My inventionrelates to double cut tools designed and intended for use in Shapers, planers and the like where the tool head and bed carrying the Work have a relative planular reciprocating movement.

One of the principal objects of the invention is the provision of a tool for a planer -or shaper which will cut with equal eiciency and accuracy on both the forward and return strokes of the tool 'head or bed carrying the Work.

A further object of the invention is the provision of easily operable means in a tool of this character for adjusting a cutting ele ment or member, provided accurately by the use of simple devices and mechanisms, so that 'such cutting element, and any associated cutting element, Will produce a smooth, even surface onthe Work being operated upon.

Other objects and advantages of the invention will be apparent as it is understood from the following description when considered in connection with the accompanying drawing illustrating a preferred embodiment thereof.

On the drawing, Figure 1 is a front elevation of a planer provided with a tool embodying my invention; Fig. 2 is an enlarged vertical'sectional View of the tool embodying my invention taken substantially on the line 2-2 of Fig. 1; Fig. 3 is a similar view taken at right angles to the View shown in Fig. 2 and substantially on the line 3 3 thereof; Fig. f1 is a horizontal sectional vieW taken substantially on the line 4 4 of Fig. 2; Fig. 5 is a vertical sectional view taken substantially on the line 5-5 of Fig. 3;.andvl Fig. 6

is an end elevation of the means for affecting tend through the head and in each of themis mounted a tool holder 16, '17. These apertures extend completely through the head and are provided with inclined surfaces. 18 against which the lower end of the tool holders may rest while the tool is cutting to hold the tool rigidly to the Work. One of the tool holders 16 is adjustable with respect to the other, both vertically and transversely, so that the tWo cutting elements or tools 19, 20, which are positioned in the holders 16, 17, may be readily brought into accurate relation each with the other. The mounting of the holder Which permits these adjustments to occur is best shown in Figs. 2 and 3, from which it will be noted that a pair of alined apertures 21 and. 22 extend from the recess 15 through the sides of the head, and about these apertures are formed shoulders 23 and 24 which, With the side walls of the head, form bearings for a pivot shaft generally designated at 27 for the tool holder 16. `The transverse adjustment 'is effected by a collar/26 in threaded engagement with the shoulder 23 at the'left in Fig. 3. This collar is engaged with one end of the shaft 27 by means of a half-collar 28 fastened on the end of the sleeve and taking into a groove 29 in a bushing` or sleeve 30, secured on the end of the shaft 27. Rotation of the sleeve 26 will movefthe shaft 27 longitudinally and'across the head, carrying with it theholder 16. The holder 16, in the present instance, is held against movement along the lshaft by'an enlarged portion 31 of the shaft at one side and by a lock-nut 32 at the other, so that "as the shaft is moved across the head the holder `16 will move with it.

rlllhe vertical adjustment of the holder 16 and the` tool 19 carried thereby is effected vpermits the transverse adjustment lwithout disturbing thel position of the stud 35 and the half-collarA 28 connecting the sleeve 26 with the left-hand end of the shaft '27 permits vertical adjustment of the holder without disturbing the position of the transverse adjustment. Lockenuts 37v and 38 threaded upon the sleeves 23 and 24 provide means for locking the sleeves 2G and 34 in4 adjusted position. In the present instance the other tool holder 17- is pivotally mounted in the head upon a fixed pivot or shaft 39,' although it may be mounted similarly to the holder 16 if desired. i

When the parts are to be assembled the shaft 27 is inserted through the aperture 22, which is the larger` aperture or the aperture adapted to receive the enlarged por-- tion 31 of the shaft, the holder 16 and locknut 32 being threaded over the small end of the shaftv as it is inserted in the head, the shaft being moved endwise into position and the holder being engaged on the eccentric where it is secured by turning the 'lock-nut 32 against it. KThe sleeves 26 and 34: may then be slippedkinto place and secured respectively by the half-collar 38 and.

the stud 35. In use the tools 19, 20 are first ositioned in their respective holders and the holder'l with its tool is then adjusted for height andpositioned by manipulating the sleeve 34, andy is thenadjusted transf verselyin accordance with the width of cut made by each' tool in its cutting stroke. It will be apparent that these adjustments may be'varied in order and that they can be readily made by any person suflicently skilled to manipulate a planer or Shaper of any of the well known types. The lock-nuts 37 and 38 maintain'the parts in the desired adjusted relations throughout the operation of the-planer.

It is believed that the invention and many of its attendant advantages will be' understood from the foregoing Without further description, and it will be obvious that various changes may be made in the form, construction and arrangement of the parts without departing from the spiritb and scope of the invention within the sco-pe of the appended claimsor sacrificing any of' its mayteri'al advantages, the form hereinbefore described being merely a preferred embodiment thereof.

I claim:

1. A double `cut Shaper or planer tool comprising, in combination: a tool head; a tool holder mounted therein and adapted to hold a cutting tool; a shaft mounted in the said"llead; means for adjusting the said shaft longitudinally and means for adjusting it aroundy its axis, said two adjusting means being independent of each other so that each permits the operation of the other: an eccentric'fi'xed on the shaft; and asecond tool holder adapted to hold a cutting tool and mounted on the lsaid eccentric; whereby the second tool may be adjusted relative to the first tool.

. 2. A shaper or planer tool comprising' 'a head, a pivot shaft mounted in the head andhaving an eccentric, a. tool holder mounted on the said eccentric andheld from movement longitudinally of the shaft, means connecting the said lhead with the shaft for adjusting the shaft longitudinally without in- 3. A shaper or planer tool comprising a head, a pivot shaft mounted in the head and having an eccentric, a tool holder mounted on the said eccentric and held from movement longitudinally of the shaft, .means 'con-y necting the said head with the shaft forvad` justing the shaft longitudinally Without interfering with the'turningof the shaft, and means connecting the said head with the shaft for adjusting the shaft and eccentric around their axis without interfering with the longitudinal movement of the shaft, combined withanother tool holder mounted in the said head and relative to which the first tool holderis adjusted by thesaid movements of the shaft.

j 4. A shaperor planer tool comprising a head having alined externally screw-threaded tubular bearing shoulders extending outwardly from opposite sides of the head, a pivot shaft mounted in the bearings formed by the said shoulders and having an eccentric, a tool holder mounted on the said eccentric and held thereon from movement longitudinally of the shaft, means connecting one of -the said shoulders with one end of the shaft for adjusting the shaft longitudinally without interfering with the turn ing of the shaft, and means connecting the other of the said shoulders with the other endl of the shaft for adjusting the shaft around its axis Without interferingwith the longitudinal movement of the shaft.

'5. A shaper or planer tool comprising a tool head,vl a longitudinally movable pivot shaft secured thereto, a cutting element, a.A

holder for said cutting element pivotallyy mounted on said pivot shaft and held against movement longitudinally thereof, and means for moving said pivot shaft longitudinally to adjust the positionof said element in the--headcombined with another cutting element relative to which the said j shaft audits suspended cutting element is adjusted.

6. A Shaper or planer tool comprising ahead having an outwardly extending externally threaded bearing shoulder, a pi'vot shaft disposed through said bearing shoulder, a cutting element, a holder for said cutting element pivotally mounted on said pivot shaft and held against movement longitudinally thereof, and a sleeve rotatably connected to shaft and held against movement longitudinally thereof, and a sleeve rotatably connected to said pivot shaft and engaging the external threads on said shoulder for moving said pivot shaft longitudinally to adjust said element in said head, and a locking member engaging said external threads, combined with another cutting element relative to which the said shaft and its suspended cutting element is adjusted.

8. A shaper or planer tool comprising a head having outwardly extending alined externally screw-threaded tubular bearing shoulders, a pivot shaft mounted in the bearings formed by the said shoulders and having an eccentric Within the head, a tool holder mounted on and depending from the` said eccentric and held thereon `from movement longitudinally of the shaft, a collar screwed on one of the said shoulders and having means for engaging the said shaft to adjust it longitudinally while permitting it to be turned, and a sleeve screwed on the other shoulder and having means for engaging the shaft to adjust it around its axis While leaving the shaft free toA move longitudinally.

9. A shaper or planer tool comprising a head having an outwardly .extending eX- ternally threaded bearing shoulder, a pivot shaft disposed through said shoulder and provided With an eccentric, a cutting element, a holder for said cutting element pivotally mounted upon said eccentric, and means for engaging the threads on said shoulder to adjust said element vertically in said head,'combined With another cutting element relative to which the said shaft and its suspended cutting element is adjusted.

10. A shaper or planer tool comprising a head having an outwardly extending externall;v7 threaded bearing shoulder, a p'ivot shaft disposed through said shoulder and provided With an eccentric, a cutting element, a holder for said cutting element pivotally mounted upon said eccentric, means for engaging the threads on said shoulder to adjust said element vertically in said head, and a locking member engaging said external threads for maintaining said element in vertically adjusted position, combined With another cutting element relative to which the said shaft and its suspended -cutting element is adjusted.

1l. A Shaper or planer tool comprising a head having outwardly extending alined ex- Aternallyvthreaded bearing shoulders, a pivot shaft disposed through said bearing shoulders and having an eccentric disposed within the head, a cutting element, a holder for said cutting element engaging said eccentric and fixed j against independent movement longitudinally of said Ipivot shaft, means engaging one end of said pivot shaft and the adjacent bearing shoulder for moving the pivot shaft longitudinally to adjust said element transversely in the head, and means engaging the other end of said pivot shaft and the adjacent shoulder for rotating the pivot shaft to adjust said element vertically in said head, combined with another cutting element relative 4to which the said shaft and its suspended cutting element is adjusted.

l2. A shaper or planer tool comprising a head having outwardly extending alined externally screw-threaded tubular bearing shoulders, a pivot shaft mounted in the bearings formed by the said shoulders and having an eccentric Within the head, a tool holder mounted on and depending from the Said eccentric and held thereon from movement longitudinally of the shaft, a collar screwed on one of the said shoulders and having means for engaging the said shaft to adjust it longitudinally While permitting it to be turned, and a sleeve screwed on the other shoulder and having ymeans for engaging the shaft to adjust it' around its axis while leaving the shaft free to move longitudinally, combined with another tool holder mounted in the said head and relative to which the first tool holder is adjustable by the movements Vof the said shaft.

Signed this 23rd day of May, 1914, in the presence of two witnesses.

EDWARD S. CLARKE.

Witnesses:

ISAAC J. MARCUSE, O. R. Holm.

Copies of this patent may be obtained for five cents each, by addressing. the Commissioner of Patellis,y

Washington, D. C, 

